单词:sulfabenzamine
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Abby: hi, my name's Abby. What's your name? Colin: I'm colin. It's nice to meet you. What do you do? A: I'm a freelance English teacher. How about you? C: I'm in between jobs at the moment. A: what kind of job are you looking for? C: I'd like to find
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'Fab Lab' Igniting Revolution in Kenya NAIROBI, KENYA The University of Nairobis Science and Technology Park is banking on 3-D prototyping to spark a manufacturing revolution in the country. This is the 3D MakerBot printer in action. The machine is a
looking from a distance, seems like i've lost it all 从远处看,好像我已经失去了这一切 and everyone around me is waiting for this girl to fall 我周围的每个人正在等待这个女孩摔倒 but my heart is missing, i just lost con
BBC Learning English Weekender Body image survey results Amber:Hello, I'm Amber, and youre listening to bbclearningenglish.com. In Weekender today, we listen to a report about a BBC survey of 25,000 young British people, asking about their body imag
Protamine sulfate is a drug that reverses the anticoagulant effects of liver compounds such as heparin. Protamine is extracted from the sperm of salmon and other species of fish, and then made into a protamine sulfate injection which is a necessary d